题目内容

“Russian nesting doll”utilizes () of 40 invented principles

A. Local Quality
B. Nested Doll
C. Self-Service
D. Continuity of useful action

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A. Prior action
B. Spheroidality-Curvature
C. Remove tension
D. The other way round"

A. Intermediary
B. Segmentation
C. Beforehand cushioning
D. Nested Doll

A. environmentally sound
B. high resource utilization and low energy consumption
C. create profits for the enterprise